<template>
  <div>
     <button @click = 'money(3000)'>发工资啦，我的工资是3000</button><br/><br/>
        <button @click = 'money(-2800)'>给喜欢的女主播刷了火箭-2800</button><br/><br/>
        <button @click = 'money(10000)'>送外卖赚了10000</button><br/><br/>
        <button @click = 'money(-18000)'>给暗恋的女生买了爱马仕-18000</button><br/><br/>
        <button @click = 'money(8000)'>晚上去做代驾赚了8000</button><br/><br/>
        <button @click = 'money(-100)'>买泡面100</button><br/><br/>
        <button @click = 'money(-50)'>买挂逼水50</button><br/><br/>
            
        <p>我这个月还有{{num}}元</p>
   </div>
</template>
 
<script>
export default {
  data() {
    return {
       num: 0
    };
  },
  methods: {
    money(num){
      this.num += num
    }
  },
};
</script>

<style scoped>
     
</style>